Vic opposition eyes murderers' super

Murderers would have to hand over their superannuation to victims' families under an overhaul of the justice system being proposed by the Victorian opposition.

Opposition Leader Matthew Guy on Tuesday said that a coalition government would talk to the Commonwealth about changing federal laws to allow access to perpetrators' superannuation.

The move would apply "principally around murder", Mr Guy told reporters, but further advice from the Victorian Law Reform Commission could result in superannuation being forfeited for other crimes. too.

"Frankly, when someone commits a murder, particularly in horrendous circumstances ... they forfeit their right to be treated like the rest of us," Mr Guy said in Melbourne.

"We will seek it as a state response first. If it requires something more as a full COAG (Council of Australian Governments) response then so be it."

Under the coalition plan, prosecutors would need to consult victims before any plea deals were made.

The proposal is part of the opposition's response to a 2016 law reform commission report examining the role of victims in the trial process.